EP1971712B1 - Behandlung für gleitschicht der handschiene einer personenförderanlage - Google Patents

Behandlung für gleitschicht der handschiene einer personenförderanlage Download PDF

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Publication number
EP1971712B1
EP1971712B1 EP05857216.5A EP05857216A EP1971712B1 EP 1971712 B1 EP1971712 B1 EP 1971712B1 EP 05857216 A EP05857216 A EP 05857216A EP 1971712 B1 EP1971712 B1 EP 1971712B1
Authority
EP
European Patent Office
Prior art keywords
fabric layer
handrail
coating
low friction
sliding fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05857216.5A
Other languages
English (en)
French (fr)
Other versions
EP1971712A1 (de
EP1971712A4 (de
Inventor
Changsheng Guo
John M. Milton-Benoit
John P. Wesson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
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Filing date
Publication date
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Publication of EP1971712A1 publication Critical patent/EP1971712A1/de
Publication of EP1971712A4 publication Critical patent/EP1971712A4/de
Application granted granted Critical
Publication of EP1971712B1 publication Critical patent/EP1971712B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/22—Balustrades
    • B66B23/24—Handrails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/283—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polysiloxanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/047—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with fluoropolymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/121—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyesters, polycarbonates, alkyds
    • D06N3/123—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyesters, polycarbonates, alkyds with polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/125—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/746—Slipping, anti-blocking, low friction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2433/00—Closed loop articles
    • B32B2433/02—Conveyor belts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2201/00—Chemical constitution of the fibres, threads or yarns
    • D06N2201/02—Synthetic macromolecular fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2201/00—Chemical constitution of the fibres, threads or yarns
    • D06N2201/04—Vegetal fibres
    • D06N2201/042—Cellulose fibres, e.g. cotton
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/10—Properties of the materials having mechanical properties
    • D06N2209/108—Slipping, anti-blocking, low friction

Definitions

  • This invention generally relates to passenger conveyors. More particularly, this invention relates to sliding layers for use on handrails of passenger conveyors.
  • Passenger conveyors such as escalators and moving walkways typically include moving steps or a moving belt for carrying passengers between landings at opposite ends of the conveyor.
  • Handrails move with the steps or belt to provide a surface for passengers to stabilize themself while riding on a conveyor.
  • Typical handrail construction includes a rubber or thermoplastic body that provides the gripping surface for passengers.
  • An underside of the body typically is coated with a sliding fabric such as cotton or polyester. The sliding fabric facilitates the handrail sliding along a guidance.
  • a sliding fabric layer would have a surface characteristic that would provide a low co-efficient of friction between the sliding layer and the guidance.
  • Conventional handrail drive assemblies have limited the ability to incorporate a low friction sliding layer on a handrail.
  • Conventional handrail drive assemblies use friction and pinching rollers to engage both sides of a handrail to propel it in unison with the steps or moving belt so that the handrail moves along with passengers riding on the conveyor. The requirement for friction between the handrail drive mechanism and the handrail cannot be achieved if the sliding fabric layer is too slippery.
  • Another consideration in choosing a sliding fabric is ensuring good bonding between the fabric and the material used to establish the body of the handrail.
  • JP 10 007358 A discloses a handrail comprising a C-shaped core body made from layers of canvas, a rubber coating adhered to the outer peripheral surface of the canvas body, and a lubricating resin coating on the inner peripheral surface of the canvas body.
  • the lubricating resin coating impregnates a part or the whole of the inner peripheral surface of the canvas body.
  • JP 8 067487 A discloses a passenger conveyor handrail comprising a canvas layer having at least a portion of one side coated with a covered layer impregnated with spherical particulate powder, in order to reduce travelling resistance.
  • the wear on a sliding fabric layer is a major contributor to the need to repair or replace passenger conveyor handrails. There is a need for an improved arrangement that reduces the amount of wear on the sliding fabric layer to provide extended handrail life and associated cost savings. This invention addresses those needs.
  • Subject-matter of the present invention is an article and a method as claimed in the independent claims.
  • An exemplary article for use as at least a portion of a passenger conveyor handrail includes a sliding fabric layer having a low friction coating on one side of the sliding fabric layer.
  • selected portions of the one side of the fabric layer are coated with the low friction coating to facilitate sliding along the guidance.
  • Other portions of the one side of the fabric layer are not coated to facilitate proper engagement with a drive mechanism.
  • Another example includes a coating on two sides of the sliding fabric layer. There are two different coatings; one selected for low friction and the other for good bonding with the material used to establish the handrail body.
  • An illustrative example includes the same coating on both sides of a sliding fabric layer.
  • Example application techniques for applying a low friction coating to one side of a sliding fabric layer include brushing, spraying or rolling on the material used to establish the low friction coating.
  • Another example includes immersing the sliding fabric layer within the material used to establish the coating.
  • the sliding fabric layer is coated before the fabric is secured to the body of the handrail.
  • the handrail is assembled with the sliding fabric layer in place before the low friction coating is applied.
  • Figure 1 shows an example passenger conveyor 20.
  • a plurality of steps 22 move between landings 24 and 26 to carry passengers in a desired direction.
  • a handrail 30 follows a path along a guidance (not illustrated) to provide a surface for a passenger to hold onto as they ride the conveyor 20.
  • Figure 2 shows one illustrative example handrail configuration where the handrail 30 includes a body 32 comprising a rubber or thermoplastic material, for example.
  • the body 32 establishes a gripping surface 34 that faces in a direction to be gasped by an individual riding on the conveyor 20, for example.
  • An oppositely, inwardly (according to the drawing) surface of the handrail body 32 has a sliding fabric layer 36 secured in place.
  • the sliding fabric layer 36 slides along a conventional guidance (not illustrated) as the handrail moves in a known manner.
  • the sliding fabric layer 36 of one example embodiment is shown in Figure 3 .
  • the sliding fabric layer 36 has one side 38 and an oppositely facing side 39.
  • the sliding fabric layer 36 comprises cotton in one example.
  • the sliding fabric layer 36 comprises polyester.
  • one side 38 of the example sliding fabric layer 36 has a coating 40 applied to the one side 38.
  • the coating 40 is a low friction coating that establishes a low coefficient of friction between sliding fabric layer 36 and the handrail guidance.
  • Example low-friction materials are curable, thermoplastic or solvent based.
  • Example coating materials include epoxy, fluoroepoxy, polyester, polyamide, polyurethane and silicone. The selected material in some examples establishes a flexible coating that has a firm outer skin to present a non-sticky surface over the entire operating range of the handrail 30 to promote low friction.
  • Some example coatings include friction reducing additives such as tetrapolyfluoroethylene, a solid fluoropolymer, a low vapor pressure fluid fluoropolymer, a fatty acid, a fatty acid derivative (including but not limited to stearates, laurates or palmitates), graphite or molybdenum disulphide.
  • a friction reducing additive is disbursed throughout the material used to establish the low friction coating 40.
  • Figure 4 shows another embodiment of a sliding fabric layer 36 having the one side 38 coated with the coating 40 and an oppositely facing side 39 coated with another coating 42.
  • the coating 40 comprises a low friction coating to establish a low coefficient of friction between the sliding fabric layer 36 and the guidance over which the handrail will travel.
  • the coating 42 in this example comprises a different material selected to enhance bonding between the sliding fabric layer 36 and the material selected to establish the body of the handrail 30.
  • the coating 40 and the coating 42 comprise the same material.
  • a material is selected that will provide a low coefficient of friction on the side 38 and will not interfere with bonding between the fabric layer 36 and the material selected to establish the body of the handrail.
  • the coating 42 even though it provides a low friction coating on the side 38, enhances the ability to bond the sliding fabric 36 to the body of the handrail.
  • Figure 5 shows one example embodiment of a handrail 30 that includes a plurality of teeth 48 that are engaged by a driving mechanism that does not require pinching the handrail such that it does not rely on friction between the driving mechanism and a sliding fabric layer 36 that is on an end surface of each tooth 48.
  • the low friction coating 40 extends across the entire one side 38 of the sliding fabric layer 36.
  • the low friction coating 40 extends across the entire one side 38 of each portion of the sliding fabric 36 shown in the illustration.
  • Figure 6 schematically shows an illustrative example embodiment where a traditional handrail driving mechanism relies upon friction between the sliding fabric layer 36 and the drive mechanism for propelling the handrail 30 as desired.
  • the low friction coating 40 is applied in a manner to establish at least two laterally spaced stripes that extend longitudinally along a length of the sliding fabric layer 36 (e.g., into the page in the illustration).
  • a central portion 50 of the one side 38 remains uncoated to be engaged by the handrail driving mechanism.
  • the coated portions having the low friction coating 40 will provide a better coefficient of friction between the sliding layer 36 and the handrail guidance while the uncoated portion 50 facilitates appropriate frictional engagement with the driving mechanism.
  • Figure 7 schematically illustrates one example method of making a handrail assembly including a sliding fabric layer having a low friction coating.
  • Material stock for the sliding fabric layer 36 moves through a coating application station 60 in an automated fashion.
  • the sliding fabric layer 36 is coated before it is secured to a remainder of a handrail.
  • the coating application station applies the coating in one of several ways.
  • the coating application station 60 includes appropriate machinery for brushing on, spraying on or rolling on the low friction coating material.
  • the fabric layer is immersed in a bath of uncured material used to establish the low friction coating.
  • the example of Figure 7 includes a curing station 62 that includes an appropriate heat source, a dryer or both for curing the material used to establish the low friction coating 40.
  • a curing station 62 that includes an appropriate heat source, a dryer or both for curing the material used to establish the low friction coating 40.
  • appropriate curing techniques will be employed to establish good adhesion between the low friction coating material and the sliding fabric layer.
  • the result of the curing in some examples is a flexible coating layer with a firm, tack free outer skin that provides the desired coefficient of friction between the coating layer 40 and the guidance eventually used for guiding movement of the handrail to which the sliding fabric layer 36 will be applied.
  • the example of Figure 7 includes a handrail assembly station 64 where the coated sliding fabric layer 36 is secured to a remainder of the handrail.
  • the sliding fabric layer 36 is secured to a remainder of the handrail in a handrail assembly station 64 before the low friction coating 40 is applied to the sliding fabric layer 36.
  • only one side of the sliding fabric layer 36 will typically be coated as the layer 36 is already secured to the body 32 of the handrail 30 before the coating is applied.
  • One example includes coating the side 39 of the example sliding fabric layer 36, then securing the fabric layer 36 to the handrail body and subsequently applying the low friction coating 40 to the one side 38 of the sliding fabric layer 36.
  • the low friction coating 40 is applied in a coating application station 70.
  • Brushing or rolling techniques for applying the coating in such an example provide the advantage of not having to mask off portions of the handrail that should not be coated if a spraying application technique were used, for example.
  • One example includes extruding the low friction coating material 40 onto the sliding fabric layer 36. In one example, such extrusion occurs as the handrail body material is extruded such that there is no physical distinction between the handrail assembly station 66 and the coating application station 70, which are shown schematically separate for discussion purposes. In such an example, different portions of machinery working at the same time provide the desired results.
  • a finishing station 72 cures the material of the coating 40 and completes any finishing required of the handrail material.
  • the disclosed examples have a variety of advantages compared to previous handrail designs.
  • Using a low-friction coating 40 reduces the coefficient of friction as the handrail slides along a guidance. This provides extended handrail life. As the coefficient of friction is a dominant factor influencing a handrail's service life, reducing the coefficient of friction using an example embodiment of this invention extends that life and provides significant cost savings.
  • Another advantage to the disclosed examples is they allow for reduced power consumption for moving the handrail. A lower coefficient of friction allows for using less power to move the handrail as desired.
  • Another advantage is that there is less heat generation at the sliding surface, which provides better temperature control over the handrail and may allow for using less expensive materials in some instances.
  • Another advantage includes reducing the complexity of a handrail guidance arrangement.
  • Many conventional systems include rollers associated with newels to reduce frictional force at the location of the newels. Adding such rollers increases the complexity and expense of the passenger conveyor assembly. Reducing a coefficient of friction using a low-friction coating 40 allows for eliminating such rollers without any adverse effects, which provides cost savings from a material and installation standpoint.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Escalators And Moving Walkways (AREA)
  • Laminated Bodies (AREA)
  • Gloves (AREA)

Claims (12)

  1. Gegenstand, der zumindest als Teil eines Personenförderer-Hand-laufs (30) nutzbar ist, mit einer Gleitgewebeschicht (36), bei der zumindest ein Teil einer ersten Seite (38) mit einer reibungsarmen Beschichtung (40) beschichtet ist,
    dadurch gekennzeichnet, dass der Personenförderer-Handlauf (30) eine Mehrzahl von Zähnen (48) aufweist, die zum Zusammenwirken mit einem Antriebsmechanismus geeignet sind, der kein Einklemmen des Handlaufs erfordert, sowie dadurch dass die Gleitgewebeschicht (36) an einer Endfläche jedes Zahns (48) vorgesehen ist, dass die erste Seite (38) der Endfläche des Zahns (48) entgegengesetzt ist und dass die reibungsarme Beschichtung (40) sich über die gesamte erste Seite (38) der Gleitgewebeschicht (36) erstreckt.
  2. Gegenstand nach Anspruch 1,
    wobei die Gleitgewebeschicht (36) eine in eine entgegengesetzte Richtung weisende zweite Seite (39) aufweist, die mit einer Beschichtung (42) beschichtet ist.
  3. Gegenstand nach Anspruch 2,
    wobei die Beschichtung (42) auf der zweiten Seite (39) von der reibungsarmen Beschichtung (40) auf der ersten Seite (38) verschieden ist.
  4. Gegenstand nach einem der Ansprüche 1 bis 3,
    wobei die reibungsarme Beschichtung (40) mindestens eines von einem Epoxymaterial, einem Fluorepoxymaterial, einem Polyester, einem Polyamid, einem Polyurethan oder einem Silikon aufweist, oder wobei die reibungsarme Beschichtung (40) mindestens eines von Tetrafluorpolyethlen, einem Fest-Fluorpolymer, einem Fluid-Fluorpolymer mit niedrigem Dampfdruck, einer Fettsäure, einem Fettsäurederivat, Graphit oder Molybdändisulfid aufweist.
  5. Gegenstand nach einem der Ansprüche 1 bis 4,
    wobei die reibungsarme Beschichtung (40) flexibel ist und eine feste Außenhaut aufweist.
  6. Gegenstand nach einem der Ansprüche 1 bis 5,
    wobei die Gleitgewebeschicht (36) mindestens eines von Baumwolle oder Polyester aufweist.
  7. Verfahren zum Herstellen mindestens eines Teils eines Personenförderer-Handlaufs (30), aufweisend: Aufbringen einer reibungsarmen Beschichtung (40) auf mindestens einen Teil einer ersten Seite (38) einer Gleitgewebeschicht (36),
    dadurch gekennzeichnet, dass der Personenförderer-Handlauf (30) eine Mehrzahl von Zähnen (48) aufweist, die zum Zusammenwirken mit einem Antriebsmechanismus geeignet sind, der kein Einklemmen des Handlaufs erfordert, sowie dadurch, dass die Gleitgewebeschicht (36) an einer Endfläche jedes Zahns (48) vorgesehen wird, dass die erste Seite (38) der Endfläche des Zahns (48) entgegengesetzt ist und dass die reibungsarme Beschichtung (40) über die gesamte erste Seite (38) der Gleitgewebeschicht (36) aufgebracht wird.
  8. Verfahren nach Anspruch 7,
    das zumindest eines von Aufstreichen, Aufsprühen oder Aufrollen der reibungsarmen Beschichtung (40) aufweist.
  9. Verfahren nach Anspruch 7 oder 8,
    das das Aufbringen einer Beschichtung (42) auf eine zweite, in eine entgegengesetzte Richtung weisende Seite (39) der Gleitgewebeschicht (36) beinhaltet.
  10. Verfahren nach einem der Ansprüche 7 bis 9,
    das das Aufbringen von unterschiedlichen Beschichtungen (40, 42) auf die erste Seite (38) bzw. die zweite Seite (39) beinhaltet.
  11. Verfahren nach einem der Ansprüche 7 bis 10,
    das das Eintauchen der Gleitgewebeschicht (36) in ein Material zum Bilden der reibungsarmen Beschichtung (40) beinhaltet.
  12. Verfahren nach Anspruch 7,
    das das Extrudieren der reibungsarmen Beschichtung (40) auf die erste Seite der Gleitgewebeschicht (36) sowie das Befestigen des Gleitgewebes (36) an einem Körperbereich (32) eines Handlaufs (30) beinhaltet.
EP05857216.5A 2005-12-28 2005-12-28 Behandlung für gleitschicht der handschiene einer personenförderanlage Not-in-force EP1971712B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/047057 WO2007075162A1 (en) 2005-12-28 2005-12-28 Passenger conveyor handrail sliding layer treatment

Publications (3)

Publication Number Publication Date
EP1971712A1 EP1971712A1 (de) 2008-09-24
EP1971712A4 EP1971712A4 (de) 2013-03-13
EP1971712B1 true EP1971712B1 (de) 2014-04-02

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Application Number Title Priority Date Filing Date
EP05857216.5A Not-in-force EP1971712B1 (de) 2005-12-28 2005-12-28 Behandlung für gleitschicht der handschiene einer personenförderanlage

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US (1) US7650981B2 (de)
EP (1) EP1971712B1 (de)
JP (1) JP2009522185A (de)
CN (1) CN101346501B (de)
BR (1) BRPI0520805A2 (de)
CA (1) CA2634990C (de)
ES (1) ES2476040T3 (de)
HK (1) HK1128501A1 (de)
WO (1) WO2007075162A1 (de)

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WO2016201578A1 (en) 2015-06-19 2016-12-22 Ehc Canada, Inc. Method and apparatus for extrusion of thermoplastic handrail
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Also Published As

Publication number Publication date
BRPI0520805A2 (pt) 2009-11-03
CN101346501A (zh) 2009-01-14
CA2634990C (en) 2012-05-01
CN101346501B (zh) 2012-11-28
ES2476040T3 (es) 2014-07-11
US20080302632A1 (en) 2008-12-11
EP1971712A1 (de) 2008-09-24
US7650981B2 (en) 2010-01-26
EP1971712A4 (de) 2013-03-13
JP2009522185A (ja) 2009-06-11
HK1128501A1 (en) 2009-10-30
WO2007075162A1 (en) 2007-07-05
CA2634990A1 (en) 2007-07-05

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